Loose-leaf binder



May'l5, 192's. I 1,670,130 R. M. WATSON LOOSE LEAF BINDER Filed July 11, 1927 I INVENTOR.

ficzard/ M 71/472021 A TTORNE Y.

Patented May 15, 1928.

- LOOSE-LEAF BINDER.

Application. filed. July 11,

invention relates to loose leaf, binders and hasto do particularly; with the provi sion of a novel inexpensive one-piece base or shell structure. v 6 Hitherto in the manufacture of loose leaf 7 binders manufacturers have been constantly.

directingtheir attention to the provision of binders which will be inexpensivejand simple in manufacture and yet beeflicient and present an attractive appearance One of the main elements of loose leaf binders which has been a greatsourceof experimentation I and trouble is the metallic base or shell, structureand the manneroffsecuring the same to theback. It has been the common practice to providethe base member or shell with a slight extension at each end punched to receive asuitable rivet, the rivet being forced through the punched hole and. expanded. However, this expanded part of the rivet is usually very rough, presents an unattractive appearance and in binders of the cheaper sort this rivetbecomes rusty long before the binder is sold. Attempts have been made to overcome the objections to these rivets by providinggseparate shields for each end of the basememberfor covering up the-rivets. It is the object of the present invention to provide an extremely simple and inexpen- Sive base or shell member which is madeof-a single piece otmetal and stampedwhereby to permit securing of the same tothe b nder by? j-rivets while'at the same time obscuring the general viewof the rivets. More' specifichilly, this .novel base or shell member is formed Of a'fiat piece of stock, having two holes. of relatively different diameters punched at each end, each end of'the piece of stock including a single punched hole being bent-downwardly and inwardly whereby the holes'at each end will register with and be positioned beneath another set of holes in thebase- The punched holes in the inwardlybent ends are preferably smaller than the registering holes in the'top of the base-or shell whereby suitable rivets may be projected.jupwardly through the bottom holes andthe ends=of the rivets bent overand riveted into place by any suitable tool inserted through the larger hole from above. Other novel features of this device will be apparent, from the drawings and the claims appended hereto.

In the drawings: 7 a .Fig. l is aplan view of a loose leafbmder 1927. Serial No. 204,136..

havinga base memberor shell constructed in accordance with my invention.

F,'g.- 2 is a bottom plan view tobe inserted upon the backof the binder.

F g. 3 is aplan View of the flat stock illustratmg the manner of fabricating and punching the same preparatory to assembly, Fig. l is a section taken on line 4 -42 of Fig. 1 and illustrating the, compactness-of. the completed assembly. Fig. 5 is aperspective. View of one end of of the base member or shell completely assembled readyv the base member or shell illustrating the I manner of giving the curvature to the top part of the shell. and turning in the long tudinal edgesas well as -the manner ofturning in theends of. the shell whereby to bring the end apertures in alignment. 5 1

Fig. .6 is alon'gitudinal section taken on line 6-6 of Fig. -1 and illustrating the preferred manner of securing the base member or shell to the back of-theibinder. i

My novel base member or shell may best be described by setting forth the method of manufacture and assembly. Thisbase, member may be designated 1 and, as shown in Fig. 3, initiallycomprises a fiat or slightly concave piece of stock havingsuitable fiat end members '2 and 3. This piece. of stock is preferably punched, as at 3 and 4, to provide apertures for receiving the ring members, and isv preferably" punched, as at 5 to provide relatively large apertures adjacent the ends of the main part of the stock. .The two'end members 2 and 3 are also punched, as at 6, whereby to provide apertures smaller in diameter than theapertures Y.

of suitable shaft membersB and -9 forcon- .7

necting the rings which may be designated 10. The edges 11 and 12;of the base mom ber may then'be bentaround the longitudinal portions of..the shaft members 8 and 9, as clearly shown in Figs. 2 and 4. The edges 11 and 12 are adapted to be bent over so as to contact with the shaft members 8 and 9 when the halves of the ring members are angle below the plane definedby thesupported parts of the shaft-members 8 and 9,

as shown in Fig. 4. When it is desired to open the ring members 10 it will be obvious that the shaft members 8 and 9 will only have to be forced past the'common" center and up into the curved part of the base memher. It will thus'be' obvious that by forcing the interconnected parts 13 of the'shaft members up and down'past the normal cen ter of the bearings thereof that the ring members will be 'po'sitivelyheld opened or V the ends of said strip of metal bein bent inwardly and parallel to the main str p the' closed. I

'After the edges 11 and 12 have been bent over, as shown, the end members 2 and 3 may then be bent inwardly in' a plane parallel with the general plane of the base member, as shown in Figs. 5 and 6. When so' bent inwardly, the apertures 6 are brought into alignment with-the larger apertures 5, and when this has been accomplished the base member is ready to be assembled in the,

back 14 of the binder. The base member maybe placed-against the back member 14 and suitable rivets l5 forced through the back'member 1e and into thelower apertunes 6; A suitable riveting tool 16 may then be forced downwardly through the apertures 5 whereby to expand or secure therivet or eyelet firmly-in place.

' It will thus be obvious that by providing one aperture for receiving the tubular rivet, and the larger aperture above the same for permitting the insertion of "a proper tool to expand or drive home the rivet, that I have provided very inexpensive and compact means for quickly permitting assembly (of the 'basemember with the binder, and

which at the same time will substantially cover up the raggededges of the rivet to present an attractive base member as well as to prevent any positivecontact' between the jagged or ragged rivets and ends. The base member is formed allof one piece, all the holes may be punched out simultaneously and the ends and'sides bent over whereby to form a base member which'will be'as practical and inexpensiveto manufacture as the ordinary base members now in use. Furthermore, the base member is all of one piece and preferably extends the full length of the back member and covers where by the loose leafs will lie. flat against'the same and thus of the pages.

What I claim is: 1. A loose leaf binder, comprising in combination'a back member, a one-piece metallic prevent breaking or creasing base member having a smooth flat portion which extends the length of the back member, the ends of said base member being bent inwardly and parallel withthe top part of 3. A'base member fora loose leaf binder,

securing the underneathextending means directly to the back member."

comprising in combination a strip of metal" apertured to receive suitable ring members,

inwardly bent ends and-the main strip being provided with registering apertures one":

larger than the other, the smaller aperture adapted to receive securing devices, and'the larger aperture adapted to receive'a tool for I clamping the securing devices.

4. A loose leaf binder, comprising in combination a folder and an interconnecting back member therefor, a metallic flat surfaced-member extending the length of said back member, the ends of said base member being turned inwardly and substantially parallel with the-fiat surface of said base member, the ends of said flatsurfaced base member and said inturned members being provided with registering apertures, the apertures of the inturned members being adapted to, receive suitable: rivets for securing the base member to the back member, and the other apertures being adaptedto receive suitable securing tools." 5. A loose leaf binder comprising ill-"00m bination a folder and an interconnecting'back member therefor, a one-piece base Smemb'er having the longitudinal edges :thereof bent inwardly to receive and provide a substantial hollow compartment for ring members,vthe ends of the base member being provided with short inwardly extending'members bent inwardly on the plane approximately in align ment with the bottom'edges ofsaid inturned I longitudinal edges, said base member being secured'to'said back member by'fastening means directly connecting said inwardly. extending members with the back memberm- 6. The method of fabricating and assem blingbase members for loose leaf binders, which comprises forming a single piece of flat blank, simultaneously punching apertures spaced centrally of and in'the endsof said blank, inserting ring-members at theirbearmg portlons in said centrally spaced apertures, turning in the longitudinal edges to position and form bearings for saidring members, turning in the ends of the blank 'to cause registration of apertures in the top part of the blank and the inwardly turned part, placing the assembled blank on the back of a binder, inserting a rivet through the back and "through the apertures of the inturned parts of the blank, and then securing the rivets in place by a suitable toolinserted through the registering apertures of the top part of the back member.

7. A loose leaf binder, comprising in combination a back member, a base member comprising a strip of metalextending substantially the length of the member, paper securing means forming a part of the base member, and means of and connected to the ends of the base member, said means being adapted to receive suitable securing means for securing the base member to the back member.

positioned underneath Intestimony whereof I afiix my signature.

. RICHARD WATSON. 

